i
Unnatural hypoxic regimes
-
2018
Source: Ecosphere 9(9): e02408
[PDF-3.49 MB]
Details:
-
Journal Title:Ecosphere
-
Personal Author:
-
NOAA Program & Office:
-
Description:Coastal hypoxia is increasing worldwide in response to human‐caused changes in global climate and biogeochemical cycles. In this paper, we view anthropogenic trends in coastal hypoxia through the lens of disturbance ecology and complexity theory. Complexity theory provides a framework for describing how estuaries and other coastal aquatic ecosystems respond to hypoxia by understanding feedback loops. Can it also be valuable in understanding how these ecosystems behave under shifting (i.e., unnatural) disturbance regimes? When viewed as a disturbance regime, shifts in the spatial (areal extent and fragmentation) and temporal (frequency and duration of events) characteristics of coastal hypoxia can be used to track changes into a non‐stationary future. Here, we consider options for increasing the resilience of coastal aquatic ecosystems to future, unnatural hypoxic regimes. To start, we define desirable states as ecosystems with long trophic chains and slow nutrient and carbon dynamics that produce many ecosystem services. We then work backward to describe circumstances dominated by positive feedbacks that can lead ecosystems toward an undesirable state (i.e., depauperate communities and chemically reduced sediments). Processes of degradation and recovery can be understood in the context of island biogeography whereby species diversity in habitats fragmented by hypoxia is determined by the balance between rapid local extinction, slow recolonization from the edges of hypoxic patches, and opportunities for ecological succession during between disturbance events. We review potential future changes associated with changing global climate and highlight ways to enhance coastal resilience. In addition to efforts to slow climate change, potential interventions include reduced nutrient and carbon loadings from rivers, restoration of aquatic vegetation, and managing for key species, including those that promote sediment oxygenation, that enhance water clarity, or that promote grazing on epiphytic algae through top‐down control.
-
Keywords:
-
Source:Ecosphere 9(9): e02408
-
Document Type:
-
Funding:
-
Rights Information:CC BY
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:a526432563a7c7fdb55410ec185199611109a400ccbcfa8006e36a12e6934044
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
2018 | Annals of Glaciology, 59(76pt2), 137-147.Description:Pressure ridges impact the mass, energy and momentum budgets of the sea-ice cover and present an obstacle to transportation through ice-infested water...Personal Author:Drake, John M. ;Richards, Robert L.2018 | Ecosphere 9(9): e02373Description:Methods for modeling species’ distributions in nature are typically evaluated empirically with respect to data from observations of species occurren...2019 | Proc Natl Acad Sci U S A. 2019 Mar 19; 116(12): 5582–5587Description:In terrestrial systems, the green wave hypothesis posits that migrating animals can enhance foraging opportunities by tracking phenological variation ...Personal Author:Lefohn, Allen S. ;Malley, Christopher S....2018 | Elem Sci Anth, 6(1), p.28.Description:Assessment of spatial and temporal variation in the impacts of ozone on human health, vegetation, and climate requires appropriate metrics. A key comp...2019 | Conserv Physiol. 2019; 7(1): coz035.Description:Reversing global declines in the abundance and diversity of fishes is dependent on science-based conservation solutions. A wealth of data exist on the...Using Linkage Maps as a Tool To Determine Patterns of Chromosome Synteny in the Genus SalvelinusCitePersonal Author:Hale, Matthew C ;McKinney, Garrett J...2017 | G3 (Bethesda) 2017 Nov; 7(11): 3821-3830.Description:Next generation sequencing techniques have revolutionized the collection of genome and transcriptome data from nonmodel organisms. This manuscript det...Personal Author:Yang, Tiffany ;Haas, Heather L...2019 | Conserv Physiol;Description:We documented blood biochemistry and haematology of healthy loggerhead turtles (Caretta caretta) in the Northwest (NW) Atlantic in order to establish ...Personal Author:Trego, Marisa L ;Whitehead, Andrew...2019 | Conserv Physiol;Description:Marine wildlife populations are adapted to survive in highly dynamic environments. However, identifying the effects of endogenous versus exogenous var...Personal Author:Rojas-Bracho, Lorenzo ;Brusca, Richard C...2019 | Bioscience;Description:The vaquita porpoise (Phocoena sinus) is Mexico's only endemic—and the world's most endangered—marine mammal. With a population of fewer than 30 i...Personal Author:Friedman, Whitney R. ;Martin, Benjamin T....2019 | Ecosphere 10(7): e02743Description:Life histories of migratory species such as anadromous fishes make them particularly susceptible to composite effects of processes experienced across ...2017 | Ecosphere 8(3): e01728Description:River‐floodplains are hotspots for many ecosystem services (ES ), and thus, understanding how these services are spatially organized along river sys...Seasonal physiological dynamics of maturing female southern flounder (Paralichthys lethostigma)CitePersonal Author:Grieshaber, Casey A. ;Midway, Stephen R....2016 | Conserv Physiol. 2016; 4(1): cow043.Description:Physiological information is rarely used in descriptions of maturity for managed, wild fish species; however, the use of physiological data holds grea...Personal Author:Richardson, David E. ;Marancik, Katrin E....2016 | Proc Natl Acad Sci U S A. 2016 Mar 22; 113(12): 3299-3304.Description:Atlantic bluefin tuna are a symbol of both the conflict between preservationist and utilitarian views of top ocean predators, and the struggle to reac...Personal Author:Brown, Stuart M. ;Heguy, Adriana...2017 | Genome Biol Evol;Description:Atlantic tomcod in the Hudson River Estuary bioaccumulate high hepatic burdens of environmental toxicants. Previously, we demonstrated that Hudson Riv...2018 | Conserv Physiol. 2018; 6(1): coy031.Description:Baleen whales have few identifiable external indicators of pregnancy state, making it challenging to study essential aspects of their biology and popu...Personal Author:Bellmore, J Ryan ;Pess, George R...2019 | Bioscience. 2019 Jan 1; 69(1): 26–39Description:One of the desired outcomes of dam decommissioning and removal is the recovery of aquatic and riparian ecosystems. To investigate this common objectiv...Personal Author:Goertz, Caroline E C ;Burek-Huntington, Kathy...2019 | Conserv Physiol. 2019; 7(1): coz071.Description:The Cook Inlet population of beluga whales (Delphinapterus leucas) is listed as endangered and continues to decline for largely unknown reasons; howev...Personal Author:Wahl, Eugene R. ;Zorita, Eduardo...2019 | Proc Natl Acad Sci U S A. 2019 Mar 19; 116(12): 5393–5398Description:Moisture delivery in California is largely regulated by the strength and position of the North Pacific jet stream (NPJ), winter high-altitude winds th...Personal Author:Peng, Ge ;Meier, Walter N.2017 | Annals of Glaciology, 59(76pt2), 191-200.Description:With rapid and accelerated Arctic sea-ice loss, it is beneficial to update and baseline historical change on the regional scales from a consistent, in...Personal Author:Muñoz, Ángel G. ;Thomson, Madeleine C....2016 | Gigascience;Description:The emergence of Zika virus (ZIKV) in Latin America and the Caribbean in 2014-2016 occurred during a period of severe drought and unusually high tempe...
More +
You May Also Like
2022 | Journal of Marine Science and Engineering, 10(6), 714
Description:
Seagrass beds serve as important carbon sinks, and it is thought that increasing the quantity and quality of such sinks could help to slow the rate of...
2021 | Geophysical Research Letters, 48(5)
Description:
Diurnal variability of ocean CO2 system variables is poorly constrained. Here, this variability and its drivers are assessed using 3-h observations co...
Checkout today's featured content at repository.library.noaa.gov